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ClinicalTrials.gov public records Last synced May 22, 2026, 2:48 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: HR+ Breast Cancer Clear all
Recruiting Phase 1 Interventional
View directory record Official record
Conditions
Hormone-receptor-positive Breast Cancer, HER2-negative Breast Cancer, Metastatic Breast Cancer
Interventions
BGB-21447, Fulvestrant, BGB-43395
Drug
Lead sponsor
BeOne Medicines
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
4
States / cities
Newport Beach, California • Iowa City, Iowa • Houston, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced May 22, 2026, 2:48 AM EDT
Terminated Phase 1 Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
TTI-101, Palbociclib, Aromatase inhibitor (AI), fulvestrant, ribociclib
Drug
Lead sponsor
Tvardi Therapeutics, Incorporated
Industry
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
6
States / cities
Fort Lauderdale, Florida • St Louis, Missouri • Nashville, Tennessee + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced May 22, 2026, 2:48 AM EDT
Completed Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Cancer
Interventions
Ribociclib, Everolimus, Exemestane
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
25
States / cities
Chandler, Arizona • Fayetteville, Arkansas • Los Angeles, California + 20 more
Source: ClinicalTrials.gov public record
Updated May 4, 2021 · Synced May 22, 2026, 2:48 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
Intermittent Fasting
Behavioral
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced May 22, 2026, 2:48 AM EDT
Recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Metastatic Breast Cancer, HER2 Low Breast Carcinoma, HER2-negative Breast Cancer, Breast Cancer, Breast Cancer Female
Interventions
Elacestrant, Trastuzumab Deruxtecan
Drug
Lead sponsor
Sarah Sammons, MD
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2038
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced May 22, 2026, 2:48 AM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Hormone Receptor-Positive Breast Carcinoma
Interventions
Biospecimen Collection, Bone Mineral Density Test, Questionnaire Administration, WBF-038
Procedure · Other · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced May 22, 2026, 2:48 AM EDT
Recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Advanced HR+/HER2- Breast Cancer, Advanced CCNE1-amplified Solid Tumors, Metastatic Castration-resistant Prostate Cancer
Interventions
GVV858, Fulvestrant, Letrozole
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced May 22, 2026, 2:48 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Hormone Receptor Positive Breast Cancer, HER-2 Positive Breast Cancer
Interventions
Abemaciclib, Trastuzumab, Fulvestrant, Standard of Care Single Agent Chemotherapy
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Female only
Enrollment
237 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
32
States / cities
Bakersfield, California • Fullerton, California • Los Angeles, California + 22 more
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced May 22, 2026, 2:48 AM EDT
Recruiting Early Phase 1 Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
Bortezomib; pembrolizumab and cisplatin injections--bortezomib followed by pembro/cis
Drug
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced May 22, 2026, 2:48 AM EDT
Withdrawn Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
HER2-positive Breast Cancer, HER2 Low, SYD-985, SYD985, Vic-trastuzumab Duocarmazine, Metastatic Cancer, Metastatic Breast Cancer, Metastatic Gastrointestinal Carcinoid Tumor, Metastatic, HER2 Low Breast Cancer, GastroEsophageal Cancer, Gastroesophageal Adenocarcinoma, Endometrium Tumor, Ovarian Cancer, Ovarian Carcinoma, HER2-positive Gastric Cancer, HER2-positive Metastatic Breast Cancer, HER2 Mutation-Related Tumors, HER-2 Protein Overexpression, HER2 Low HR Positive, HR Positive, Hormone Receptor-positive Breast Cancer, Estrogen Receptor Positive Tumor, Progesterone Receptor-positive Breast Cancer, Triple Negative Breast Cancer, Hormone Receptor Negative Breast Carcinoma, Bladder Cancer
Interventions
Vic-trastuzumab duocarmazine (SYD985) + paclitaxel
Drug
Lead sponsor
QuantumLeap Healthcare Collaborative
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced May 22, 2026, 2:48 AM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
Advanced or Metastatic Breast Cancer
Interventions
PF-07220060 CDK4 inhibitor, Fulvestrant, Everolimus, Exemestane
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
17
States / cities
Irvine, California • Los Angeles, California • Newport Beach, California + 9 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced May 22, 2026, 2:48 AM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
A CDK4/6 inhibitor different from the first that the participant had received, plus fulvestrant., Treatment of physician's choice
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced May 22, 2026, 2:48 AM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
Dato-DXd
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
6
States / cities
Largo, Florida • Fort Wayne, Indiana • Omaha, Nebraska + 3 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced May 22, 2026, 2:48 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Breast Cancer, Solid Tumors
Interventions
PF-07220060 + PF-07104091 combination dose escalation, PF-07104091 + PF-07220060 + fulvestrant dose expansion, PF-07104091 + PF-07220060 + letrozole dose expansion
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
12
States / cities
Los Angeles, California • Santa Monica, California • Boston, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2024 · Synced May 22, 2026, 2:48 AM EDT
Terminated Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Triple Negative Breast Cancer, Endometrial Cancer, Solid Tumor, Unspecified, Adult, Colorectal Cancer
Interventions
Fruquintinib, Tislelizumab
Drug
Lead sponsor
Hutchmed
Industry
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
16
States / cities
Phoenix, Arizona • Springdale, Arkansas • Beverly Hills, California + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced May 22, 2026, 2:48 AM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
Breast Cancer, Early-stage Breast Cancer, High Risk Breast Carcinoma
Interventions
Abemaciclib, Tamoxifen, Anastrozole, Letrozole, Exemestane, LHRH Agonist
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
12
States / cities
Stamford, Connecticut • Brewer, Maine • Scarborough, Maine + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced May 22, 2026, 2:48 AM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Breast Cancer
Interventions
Gedatolisib, Palbociclib, Fulvestrant, Alpelisib
Drug
Lead sponsor
Celcuity Inc
Industry
Eligibility
18 Years and older
Enrollment
701 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
71
States / cities
Birmingham, Alabama • Goodyear, Arizona • Jonesboro, Arkansas + 62 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced May 22, 2026, 2:48 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Early Breast Cancer
Interventions
LEE011 (ribociclib), letrozole
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
4
States / cities
Fayetteville, Arkansas • Los Angeles, California • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 31, 2015 · Synced May 22, 2026, 2:48 AM EDT
Recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Hormone Receptor Positive HER-2 Negative Metastatic Breast Cancer
Interventions
Zumsemetinib, Capecitabine, Zoledronic acid, Denosumab
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2032
U.S. locations
3
States / cities
Westwood, Kansas • Rochester, Minnesota • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced May 22, 2026, 2:48 AM EDT
Active, not recruiting Phase 3 Interventional Results available
View directory record Official record
Conditions
Advanced or Metastatic Breast Cancer
Interventions
Trastuzumab deruxtecan, Capecitabine, Paclitaxel, Nab-Paclitaxel
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 105 Years
Enrollment
866 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
27
States / cities
Scottsdale, Arizona • Springdale, Arkansas • Duarte, California + 23 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced May 22, 2026, 2:48 AM EDT
Terminated Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Cancer, Hormone Receptor Positive Tumor
Interventions
Durvalumab, Anastrozole 1mg, Letrozole 2.5mg, Exemestane 25 MG
Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 30, 2022 · Synced May 22, 2026, 2:48 AM EDT
Active, not recruiting Phase 2 Interventional
View directory record Official record
Conditions
Triple Negative Breast Cancer, Hormone Receptor Positive (HR+), HER2-negative Breast Cancer, Biopsy-proven, Positive Lymph Node(s)
Interventions
Radiation Therapy Boost, Pembrolizumab, Paclitaxel, Carboplatin, Cyclophosphamide, Doxorubicin, Capecitabine
Radiation · Drug
Lead sponsor
Laura M. Spring, MD
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
10
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland • Boston, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced May 22, 2026, 2:48 AM EDT
Active, not recruiting Phase 3 Interventional
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
DB-1303/BNT323, Capecitabine, Paclitaxel, Nab-paclitaxel
Drug
Lead sponsor
DualityBio Inc.
Industry
Eligibility
18 Years and older
Enrollment
541 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
47
States / cities
Tucson, Arizona • Fullerton, California • Los Angeles, California + 41 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced May 22, 2026, 2:48 AM EDT
Terminated Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Breast Inflammatory Carcinoma, Locally Advanced Breast Carcinoma, Metastatic Breast Carcinoma, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Cyclophosphamide, Doxorubicin, Laboratory Biomarker Analysis, Neratinib, Paclitaxel, Pertuzumab, Trastuzumab
Drug · Other · Biological
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced May 22, 2026, 2:48 AM EDT